The song appearing in the EP, Gold Skies, that reached 21 on "Billboard" was released in what year?
2013
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Gold Skies (EP)
43210343
-1
Section::::Abstract.
Gold Skies (EP)
43210343
-1
Section::::Abstract.
Animals (Martin Garrix song)
40146426
-1
Section::::Abstract.
Animals (Martin Garrix song)
40146426